Quantitative capability of SSVEP power spectrum with the same subject on another day

Abstract

In this study, our purpose is to elucidate features of the Steady-State Visual Evoked Potential (SSVEP) induced by flipping a checkerboard pattern. Generically, EEG signals have individual variability. However, SSVEPs have less individual than other EEG signals. We focus on relationship between some conditions on checkerboard patterns and the power of the SSVEPs.We change the size of a checkerboard pattern and the number of grid-squares in a checkerboard pattern. The size of checkerboard pattern is a 5.625 cm square, 4.5 cm square, 3.375 cm square, 2.25 cm square, and 1.125 cm square. The number of grid-squares in the checkerboard pattern is 3x3, 4x4, 5x5, 6x6, 7x7, 8x8, 9x9, and 10x10. As results, there are some types of patterns in the power of the SSVEPs in each subject. In addition, We check the repeatability of patterns in the power of the SSVEPs on another day.